Exercised in Hebrews
2 verses in Hebrews.
Hebrews 5:14But strong meat belongeth to them that are of full age, even those who by reason of use have their senses exercised to discern both good and evil.
Hebrews 12:11Now no chastening for the present seemeth to be joyous, but grievous: nevertheless afterward it yieldeth the peaceable fruit of righteousness unto them which are exercised thereby.